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aleksandrvk [35]
3 years ago
9

PLEASE HELP!!!! 20 points

Mathematics
1 answer:
Vladimir79 [104]3 years ago
4 0

Answer:

Interval notation [-2, 0) U (0, 7]

Step-by-step explanation:

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Olivia’s age plus twice John’s age is 30. Three times Olivia’s age plus 8 times John’s age is 108. How old are Olivia and John?
andrezito [222]

Answer:

John is 9 and Olivia is 12

Step-by-step explanation:

12+18= 20

36+ (9x8)= 108

4 0
2 years ago
The 45°- 45° - 90° Triangle Theorem states that the length of the hypotenuse is ________ times the length of one leg.
Airida [17]
 <span>This is an isosceles triangle. If each side is 1, we can find the hypotenuse using the Pythagorean theorem. 

a^2 + b^2 = c^2 
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Thus, the answer is root 2.

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3 0
3 years ago
The escalator rises 25° from the ground and a vertical distance of 42 feet. How much horizontal distance does the escalator cove
zvonat [6]
Tangent (25) = opp / adj = 42 / horizontal distance
horizontal distance =  42 / tangent (25)
horizontal distance = 42 / 0.46631
horizontal distance = <span> <span> <span> 90.068838326435200 </span> </span> </span>
horizontal distance = 90.1 feet


5 0
3 years ago
Pleaseeeee hellllppppp and explainnn
ICE Princess25 [194]
You most likely have to multiply 10 (7 times) and whatever your answer is then you multiply your answer times 64
5 0
3 years ago
Mathematics I need help
Mkey [24]

Answer:

The answer is b

Step-by-step explanation:

0.63-0.2=0.43

8 0
2 years ago
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